Friends of mine took their boat to Table Rock lake for the week. When they had it out they noticed water coming from the exhaust and fuel spilling onto the water surface. they said there didn't seem to be any loss of power and that it seemed to be running fine at top speed of 32 miles MPH. The motor is an Murc. 85hp. By the way this boat is a Delta which my friends parents bought when she was 10 years old. She'll be 50 next mouth. It's her pride and joy.